Is that because of the failure to dump you've talked about?
Yes. I tracked it down to clobberage inside `write' which is called from
`unexec'. I hope that Glibc developers will help me track it down.
This is really strange. You're using some kind of GNU/Linux
distribution, right? I haven't heard of any such problem on GNU/Linux.
What's so different about your system?
I don't know. The failure started at the time of the Unicode merge.